48 WHEAT PRODUCTION IN NEW ZEALAND 
TABLE XI. 
WHEAT YIELD AND RAINFALL. 
CORRELATION BETWEEN YIELD AND COMPOSITE 
WINTER RAINFALL (MAY-OCTOBER) FOR VICTORIA, 
1884-1918 
YIELD RAINFALL 
Products 
Year | Yield in 3 Rainfall | novia ] of Devia- 
Bushels |Deviation) Squares | May-Oct. tion ' Squares | tions 
per Acre inches \ 
1884 9.5 - 0.1 0.01 6.3 | —3.9| 15.21 | + 0.89 
5 9.1 - 0.5 0.25 8.7 | —1.5 2.25 | + 0.75 
6 11.5 + 1.9 3.61 10.5 | +0.3 0.09 | + 0.57 
7 10.8 + 1.2 1.44 11.6 | +1.4 1.96 | + 1.68 
8 7.2 — 2.5 6.25 6.9 | -3.3| 10.89 | + 8.25 
9 9.7 + 0.1 0.01 15.1 |+4.9} 24.01 | + 0.49 
1890 11.2 + 1.6 2.56 13.8 |+3.6} 12.96 | + 5.76 
1 10.3 + 0.7 0.49 9.5 | —0.7 0.49 | — 0.49 
2 10.9 + 1.3 1.69 13.3 | +3.1 9.61 | + 4.03 
3 10.3 + 0.7 0.49 13.2 | +3.0 9.00 | + 2.10 
4 8.3 - 1.8 1.69 15.1 | +4.9} 24.01 | — 6.87 
5 4.0 — 5.6 31.36 6.6 | —3.6| 12.96 | +20.16 
6 4.5 - 6.1 26.01 5.5 | —4.7| 22.07 | +23.97 
7 6.4 — 3.2 10.24 9.2} —1.0 1.00 | + 3.20 
8 9.1 - 0.5 0.25 10.8 | +0.6 0.36 | — 0.80 
9 7.2 — 2.4 5.76 8.2 | —2.0 4.00 | — 4.80 
1900 8.8 - 0.8 0.64 9.9 | -0.3 0.09 | + 0.24 
1 6.9 - 2.7 7.29 8.8 | —1.5 9.25 | + 4.05 
2 1.3 — 8.3 68.89 4.6 | —5.6] $1.86 | +46.58 
8 14.5 + 4.9 24.01 11.8 | +1.6 2.56 | + 7.84 
4 9.5 - 0.1 01 11.4 | +1.2 1.44 | — 0.12 
6 11.3 +£1.7 2.89 10.2 0.0 wae <a 
6 11.2 + 1.6 2.56 14.8/+4.6] 91.16 | + 7.86 
q 6.6 - 3.0 9.00 7.8 | -2.4 5.72 | + 7.20 
8 13.2 + 3.6 12.96 10.6 | +0.4 0.16 | + 1.44 
9 13.8 + 4.2 17.64 18.5 | +8.8] 10.89 | +13.86 
1910 14.5 + 4.9 24.01 18.1 | +2.9 8.41 | +14.21 
1 9.8 + 0.2 0.04 9.1 | -1.1 1.21 | — 0.22 
2 12.6 + 3.0 9.00 8.9 | —1.8 1.69 |} — 0.39 
8 12.8 + 38.2 10.24 7.4 ' -2.8 7.84 | — 8.46 
Sum of Squares = 281.29 | Sum of Squares 245.65 | +158.20 
STANDARD DEVIATION OF YIELD = ae 
= Vv 9.30 
8.06 
